Jonathan hatch



. UNITED STATES PATENT OFFICE.

JONATHAN HATCH, OF SOUTH VINDHAM, OONNECTIGUT.

MACHINE FOR CUTTING PAPER INTOSHEETS.

Specitication'lforming part of Letters Patent No. 48,395, dated June 27, 1365.

To all whom it may concern:

Be it vknown that l, JONATHAN HA'rc'H, of South Windham, in the county of Windham and State of Connecticut, have.invented a sponding parts in both figures.

This invention relates to a mode of producing the `intermittent movements of the feedrolls by which the roll of paper is fed to the cutting-knife between the successive movements of the latter. Its objects are to produce the starting of the said rolls gradually and without the twitching movement usual when other feed-operating mechanisms are employed, and also to stop them gradually, and to provide for a -inore exact variation ot' the length of feed and size of the sheet than can be done by gearing. I obtain the feeding movement by means ot' an endless reciprocating band running on a pulley on the shaft of the lower feed-roll; and my invention consists in certain means of giving the said band (he necessaryintermittentmovement, and of coupling and uncoupling the aforesaid pulley with and from a friction-clutch on the shaft of the lower roll. l

To enable others skilled in the art to make and apply my invention, I will proceed to dcscribe it with reference to the drawings.

The feed-rolls A A2 are arranged at'one end of the frame B of the paper-cutting machine, the shaft of the lowerone., A2, being in fixed bearings, and that of the upper one, A', being arranged in vertical guides, which permit it toV move up and down and accommodate the latter roll to the thickness ofthe paper upon which it bears.

O is the driving-band, running on the loose pulley A* on the shaft of the lower feed-roll, and upon a loose pulley, O2, fitted to a stud at the opposite end of the machine. This band is connected with a slide, D2, which slides upon a fixed guide-bar, D, secured to one side of the framing. This `slide is connected by a rod,

d, to the upper end of a longitudinally-slotted lever, E, which moves upon a fulcrum-pin, e2, at its lower extremity.

Upon the shaft of the roller A2, close to one end, is the friction clutch A3, with which the pulley A4 is thrown in gear'at the commencement of each forward motion of the bar E, and from whichit is thrown out of gear as the bar E commences io move back by means of a forked lever, H, working upon a fixed fnlcrum, o, and a cam, F, on the constantly-revolving shaft G. The movements of the lever E are produced by a crank, I, on the shaft G, the wrist of which works in the slot E. This crank I also has a longitudinal slot, in which the wrist i is adjustable, to vary the length of stroke ofthe lever E for the purpose of var-yL ing the length of movement of the band produced by the forward movements of the said slide, thus enabling the same machine to cut sheets of diiferent lengths. Any receding motion of the rollers A A2 which might be produced by the friction of the pulley A4 as the band@ is moved back by the slide D is prevented by a friction-hand, J, and weight' J2 bearing upon the said roller-shaft and producing enough friction to hold the rollers to the position in which they stopped at the end of the previous forward stroke of the rod E and until the beginning of the following stroke. This band J is secured to any convenient portion of the frame-work and passes over the shaft ot' the lower leading-roller, A2.. At the opposite end of the frame from the rollers A' and A2 is situated, parallel-to them, a third roller, K, for the purpose of conducting from a reel the roll or web of' paper to be cut into sheets.

The cutter may be of the usual kind and arranged in the usual position near the feedrolls, and I have therefore'not thought it necessary to represent it.

What I claim as my invention, and desire to secure by Letters Patent, is

The crank I, slotted lever E, slidel I), band C., clutch A3, pulley A4, lever H, and cam F, in combination with each other and with the feed-rolls of a papercutting machine, substantially as and for the purpose herein specied.

JONATHAN HATCH.

Witnesses: v

A.- S. WINcHEsTEE, L. C. Knuo. 

